geting user input (number)

[kliane]

hey? im new to java.. i need help in getting the user's input.
i need that Number that the user will input for me to use it for calculation.. pls do help me now..

my code is here,..

thanks..

u can send me msgs at klianelics08@gmail.com

i need replies now ryt here.. thanx a lot..

/*

Program Name : Fire law regulations
Description : This program will determine whether a meeting room is in violation of fire law regulation. maximum room capacity is 50.
*/


class Fire
{
public static void main(String[] args)
{

//DECLARATION OF VARIABLES


int MaxRoomCapacity=50;
int NumOfPeopleNeeded; // in case the ppol attended is less than the max rum capacity
int NumOfPeopleEx; // number of ppol that will be excluded in case ppol attended is more than max rum capacity.


//GET INPUT

//cant right something in here.. help me pls


//CALCULATIONS

if(NumOfPeopleAttended>=MaxRoomCapacity)
{

NumOfPeopleEx=NumOfPeopleAttended-MaxRoomCapacity;

System.out.println(" ");
System.out.println("\tThe maximum room capacity is " + MaxRoomCapacity);
System.out.print("\t");
System.out.print(NumOfPeopleAttended);
System.out.println(" people will be attending.");
System.out.println(" ");
System.out.println("\tANNOUNCEMENT!!!");
System.out.println("\tThe meeting cannot be held as planned due to fire regulations.");
System.out.print("\t");
System.out.println(NumOfPeopleEx + " people must be excluded in order to meet the maximum room capacity");

}

else
{
NumOfPeopleNeeded=MaxRoomCapacity-NumOfPeopleAttended;

System.out.println(" ");
System.out.println("\tThe maximum room capacity is " + MaxRoomCapacity);
System.out.print("\t");
System.out.print(NumOfPeopleAttended);
System.out.println(" people will be attending.");
System.out.println(" ");
System.out.println("\tANNOUNCEMENT!!!");
System.out.println("\tIt is legal to hold the meeting.");
System.out.print("\t");
System.out.println(NumOfPeopleNeeded + " people may legally attend");
}
}
}

[kliane]

hey? im new to java.. i need help in getting the user's input.
i need that Number that the user will input for me to use it for calculation.. pls do help me now..

my code is here,..

thanks..

u can send me msgs at klianelics08@gmail.com

i need replies now ryt here.. thanx a lot..

/*

Program Name : Fire law regulations
Description : This program will determine whether a meeting room is in violation of fire law regulation. maximum room capacity is 50.
*/


class Fire
{
public static void main(String[] args)
{

//DECLARATION OF VARIABLES


int MaxRoomCapacity=50;
int NumOfPeopleNeeded; // in case the ppol attended is less than the max rum capacity
int NumOfPeopleEx; // number of ppol that will be excluded in case ppol attended is more than max rum capacity.


//GET INPUT

//cant right something in here.. help me pls


//CALCULATIONS

if(NumOfPeopleAttended>=MaxRoomCapacity)
{

NumOfPeopleEx=NumOfPeopleAttended-MaxRoomCapacity;

System.out.println(" ");
System.out.println("\tThe maximum room capacity is " + MaxRoomCapacity);
System.out.print("\t");
System.out.print(NumOfPeopleAttended);
System.out.println(" people will be attending.");
System.out.println(" ");
System.out.println("\tANNOUNCEMENT!!!");
System.out.println("\tThe meeting cannot be held as planned due to fire regulations.");
System.out.print("\t");
System.out.println(NumOfPeopleEx + " people must be excluded in order to meet the maximum room capacity");

}

else
{
NumOfPeopleNeeded=MaxRoomCapacity-NumOfPeopleAttended;

System.out.println(" ");
System.out.println("\tThe maximum room capacity is " + MaxRoomCapacity);
System.out.print("\t");
System.out.print(NumOfPeopleAttended);
System.out.println(" people will be attending.");
System.out.println(" ");
System.out.println("\tANNOUNCEMENT!!!");
System.out.println("\tIt is legal to hold the meeting.");
System.out.print("\t");
System.out.println(NumOfPeopleNeeded + " people may legally attend");
}
}
}

[pbrockway2]

So what have you tried?

Have a look in your textbook/notes etc for the classes Scanner, Console and BufferedReader: all of which provide methods for reading numeric input from the user at the command line.

[Syntax]

Okay here you go. I cleaned it up and such as well.


/*

Program Name : Fire law regulations
Description : This program will determine whether a meeting room is in violation of fire law regulation. maximum room capacity is 50.
*/


class Fire
{
public static void main(String[] args)
{

//DECLARATION OF VARIABLES


int MaxRoomCapacity=50;
int NumOfPeopleNeeded;
int NumOfPeopleEx=0;
int NumOfPeopleAttended;

System.out.println("How many people will attend?")
NumOfPeopleAttended = one.nextInt();


//CALCULATIONS

if(NumOfPeopleAttended>MaxRoomCapacity)
{

NumOfPeopleEx=NumOfPeopleAttended-MaxRoomCapacity;

System.out.println("The maximum room capacity is " + MaxRoomCapacity);
System.out.print(NumOfPeopleAttended+" people will be attending.");
System.out.println("ANNOUNCEMENT: The meeting cannot be held as planned due to fire regulations.");
System.out.println(NumOfPeopleEx + " people must be excluded in order to meet the maximum room capacity");
}

else
{
NumOfPeopleNeeded=MaxRoomCapacity-NumOfPeopleAttended;


System.out.println("The maximum room capacity is " + MaxRoomCapacity);
System.out.print(NumOfPeopleAttended+" people will be attending.");
System.out.println("ANNOUNCEMENT: It is legal to hold the meeting.");
System.out.println(NumOfPeopleNeeded + " more people may legally attend");
}
}
}

[pbrockway2]

Great. What happens when you compile that, any helpful messages?

If you can't understand the compiler message, post it here.

[Syntax]

Give me a second let me try it :p

[Syntax]

Thanks i found some problems. The imports were not imported and a scanner was not created.

Here you go:

import javax.swing.*;
import java.awt.*;
import java.util.Scanner;

/*

Program Name : Fire law regulations
Description : This program will determine whether a meeting room is in violation of fire law regulation. maximum room capacity is 50.
*/


class Fire
{
public static void main(String[] args)
{

//DECLARATION OF VARIABLES


int MaxRoomCapacity=50;
int NumOfPeopleNeeded;
int NumOfPeopleEx=0;
int NumOfPeopleAttended;

Scanner one = new Scanner(System.in);
System.out.println("How many people will attend?");
NumOfPeopleAttended = one.nextInt();


//CALCULATIONS

if(NumOfPeopleAttended>MaxRoomCapacity)
{

NumOfPeopleEx=NumOfPeopleAttended-MaxRoomCapacity;

System.out.println("The maximum room capacity is " + MaxRoomCapacity);
System.out.println(NumOfPeopleAttended+" people will be attending.");
System.out.println("ANNOUNCEMENT: The meeting cannot be held as planned due to fire regulations.");
System.out.println(NumOfPeopleEx + " people must be excluded in order to meet the maximum room capacity");
}

else
{
NumOfPeopleNeeded=MaxRoomCapacity-NumOfPeopleAttended;


System.out.println("The maximum room capacity is " + MaxRoomCapacity);
System.out.println(NumOfPeopleAttended+" people will be attending.");
System.out.println("ANNOUNCEMENT: It is legal to hold the meeting.");
System.out.println(NumOfPeopleNeeded + " more people may legally attend");
}
}
}

[pbrockway2]

Thanks i found some problems. The imports were not imported and a scanner was not created.

Well done - it seems to be giving sensible output now. (Well, unless the user enters a negative number. But in that case they deserve what they get...)

Actually you don't need the java.swing and java.util imports.

[Syntax]

oh okay :)
i'm not really sure what they do, i just add them to all my programs lol.
better safe than sorry eh?

[kliane]

hey hey hey thanx to all of you guyz.. you helped me a lot.. mwuah